Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.
User reviews: Overwhelmingly Positive (3,016 reviews)
Release Date: Jun 12, 2012

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Recommended By Curators

"A space-based RTS with light 4x elements. Rebellion, added enough content to make it worthwhile. Expect more macro than micro."
Read the full review here.


“Bigger and more stable than ever, Sins of a Solar Empire: Rebellion will happily strip-mine your life of its free time.”
86/100 – PC Gamer
“...this is the ultimate version of Sins of a Solar Empire...”
8.5/10 – Strategy Informer
"...Sins embraces its grand strategy like never before."
5/5 – Quarter to Three
“As a standalone expansion, it does very well at balancing between long time Sins fans and newcomers to the series.”
9/10 – RTS Guru

About This Game

The Next Installment to the Award-Winning RTS.
While many were hopeful that diplomacy would finally end the war, differing opinions on what should be done, along with the depleted power of the controlling factions, has led to a splintering of the groups involved.

The loyalist members of the Trader Emergency Coalition adopt a policy of isolation, focusing on enhanced defenses to ride out the rest of the war. Those who rebel against the coalition take on a purely militant view, coming to the opinion that the only way to bring peace is by ultimately crushing all who oppose them - especially xenos.

For the first time in their history, the war creates a schism in the Advent Unity. The loyalists seek to continue their policy of revenge against the Traders, and to assimilate all others to the Unity’s influence. However, others amongst the Advent suspect that a corrupting influence from within has diverted the Unity from its proper destiny.

The divide created in the Vasari Empire is less pronounced, but just as severe to their people. With the Vasari now practically frantic to move on to new space, the loyalist faction abandons cooperation and decides to take the resources they need by any means necessary. Having accepted the need to work together, the rebel faction feels that their best chance for survival is to work with the other races and bring them along to flee the approaching enemy.

Take the battle for galactic supremacy to its ultimate level in Sins of a Solar Empire: Rebellion – a standalone RT4X game that combines the tactics of real-time strategy with the depth of the 4X genre (eXplore, eXpand, eXploit, eXterminate).

Key features:

  • New Factions: Decide whether to play as a Loyalist or Rebel – each unlocks new technologies, ships and play styles for each race.
  • New Titan Class Warships: Mighty titans enter the fray of the war to tip the scales of power. Each faction may field their own unique titan, drawing upon unique strengths and abilities on the battlefield.
  • New and Updated Capital Ships: A new capital ship joins the fleet for each race to offer even more tactical options. Additionally, all existing capital ships have been upgraded to four levels for their abilities, allowing players to focus their ships along specific strengths.
  • New Corvette Class Ships: Small and maneuverable, each faction has developed a new light attack craft to harass enemy forces.
  • Updated Visuals: Updated graphics, particle effects, lighting and shadows, race specific UI and other enhancements make the Sins’ universe look better than ever.
  • New Victory Conditions: Take multiple paths to victory including – Military, Diplomatic, Research, Last Flagship Standing, Last Capital Standing and Occupation.
  • New Audio: More than 60 minutes of original music, countless new sound effects and dozens of new voice overs help bring the drama of battle to new levels of immersion.
  • Tutorials: New and updated tutorials make it easy for both experienced and new players to quickly start building their own solar empire.
  • Plus, a number of optimizations that provide better performance than ever before!

System Requirements

    • OS: Windows 8 / Windows 7 SP1 / Windows Vista SP2
    • Processor: 3 GHz Intel Pentium 4 Processor or Equivalent
    • Memory: 2 GB Available System Memory
    • Graphics: 256 MB Video Card w/Pixel Shader 3.0 Support (Radeon X1650 / GeForce
      6800* or Better)

    • DirectX®: 9.0c
    • Hard Drive: 5 GB HD space
    • Sound: DirectX 9.0c Compatible Sound Card
    • Other Requirements: Keyboard and Mouse (w/scroll wheel), Broadband Internet connection for Multiplayer
    • * NVidia video chipsets must use driver version 296.10 or higher and mobile cards be set as the primary video chipset for the game.
    • Processor: Intel Core i5/i7 Processor or Equivalent
    • Memory: 4 GB Available System Memory
    • Graphics: 1 GB Video Card w/Pixel Shader 3.0 Support (Radeon X3000 Series / GeForce 8000* Series or Better)
    • Other Requirements:Broadband Internet connection, also to activate this game you must create a Stardock account while launching the game on Steam.
Helpful customer reviews
170 of 178 people (96%) found this review helpful
92.4 hrs on record
Posted: November 3
Click for Gameplay Trailer - Review
+ nice looking space
+ beautiful effects
+ clear optics
- weak details

+ 6 KI difficulties
+ for advanced and professionals demanding
- novices might struggle with it.

+ nice music and sound effects
- only a few text set to music

+ huge space fights
+ exciting empire expansion in space
- lifeless galaxy

Game Size:
+ many scenarios, map editor and random maps
+ many possible settings
+ 3 factions with 2 sub factions
+ big tech tree
- no race or ship editor

+ powerful titans
+ units gain exp
+ ship abilities

Sins of a Solar Empire Rebellion returns gamers to the rich universe of this franchise as players engage in another "Realtime 4X" experience which stands for "explore, expand, exploit and exterminate".
However at its heart, manage your empire through micro and macro gaming management. Players start with one planet where they need to commence their advancement of their tech tree.
By improving the technology at your disposal, this allows you to conquer the stars and find other suitable planets to expand your empire.

Gameplay remains focused on building a space empire in the far future through constructing massive battle fleets, colonizing planets and asteroids, gathering metal and crystal resources, stuffing the bank account full of credits, engaging other species diplomatically, and even spreading your culture across the spaceways like some kind of interstellar Roman Empire.

In Rebellion, Ironclad Games legitimately buffs up Sins of a Solar Empire's graphical engine, enhancing visual effects and allowing for more stuff to happen smoothly on the screen at once. Rebellion also adds three "new" factions (more on that in a second).
Also new are the Corvette and Titan class ships. Titans are gigantic, superweapon-esque battle platforms that can single-handedly take on flotillas of enemy vessels.
They also have powerful "buffs" they can impart to friendly ships, making your side able to take and dish out more damage.
Despite all of their abilities, Titans are not overpowered. You need to research a lot of tech to enhance their weaponry and damage capability, and move them up in level before they hit their full potential. Even then, Titans need allies, or enemy fleets can whittle them down to nothing.

- Vasari Loyalists, for instance, have a hate on for pretty much all other races, and can eat planets.
- Vasari Rebels, on the other hand, are more easygoing when it comes to buddying up with other species, and they specialize in nanotechnology.
- TEC Loyalists are all about defense, with cheaper starbases and the ability to deploy two of these behemoths around planets.
- TEC Rebels are all about conquest and can ally with pirates and neutrals to go on the offensive.
- Advent Loyalists are aggressive mind-controllers out to assimilate enemies.
- Advent Rebels are a little more on the spiritual side and can revive destroyed ships.

Graphically, Rebellion is a good looking game on the PC, especially on full detail. Even though at times the graphics may seem a little bland, there is some great attention to detail in the game, and some really cool particle effects when enemies are blown to hell.
There are some nice cut scenes that assist in the overall story telling of the title. Finally a great soundtrack and some subtle sound effects that assist in immerging you into this intergalactic battle or loyalists and rebels of the various factions. All in all, gameplay, graphics and sound comes together in a way that makes this an addictive yet entertaining gaming experience.

This is an excellent game, with loads of new options and an incredible amount of tactical depth, it does show the age of the series. Until that game launches, however, you can get your space-empire fix from this outstanding stand-alone expansion, which contains enough ways to conquer a galaxy to tide you over for a very long time.

Sorry for my bad english. This is my review account, because the low playtime.
Thanks for reading! If you Like my Review, give me a Thumbs up in Steam.
Your help is greatly appreciated :)

My Curator Page:Sub
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10 of 12 people (83%) found this review helpful
17.1 hrs on record
Posted: November 22
Excellent RTS Game, The mods for this game are also incredible like Dawn of the Reapers (Mass Effect), Sins of a Galactic Empire (Star Wars) and Sins of the Prophets (Halo). I downloaded the Halo mod before i even got the game itself, haha.
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7 of 8 people (88%) found this review helpful
10.2 hrs on record
Posted: November 2
Think Age of Empires. Then think Rome: Total War. Now throw those games into space and fast-foward a couple thousand years, and you'll get Sins of a Solar Empire. This game takes space combat where it has never gone before. The arrray of different ships is vast, the visuals stunning, and the game play rewarding. You can zoom the map all the way out to view 5 solar systems at once, or zoom all the way down to a single fighter as it zips around a mind-bogglingly large and colorful battle.

My only complaint is that sometimes the game can feel too big, if you are playing on the largest map scale, and you find yourself waiting for a good 5 minutes as your fleet traverses one system to the next in search of the enemy. Build scouts!
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7 of 8 people (88%) found this review helpful
73.1 hrs on record
Posted: November 9
VERY addictive game that takes ALOT of time per game, The mechanics are very rounded and well thought out and gameplay is immersive. games are quite slow at first due to resource rate and the ammount of time needed to start to grow ingame. However once started it can be very difficult and fast paced.

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5 of 5 people (100%) found this review helpful
92.9 hrs on record
Posted: October 29
A typical RTS / Resource Game. $3.79 on sale, I can't complain. Overall the game is simple and the AI can be challenging if your playing on insane and custom map modes. The game can get bogged down if too many statics are on the map pending the size and the amount of planets / Stars / Ships / Players etc, etc. It does get repetitive and a bit boring when your playing against a 12 player map A.I. and has taken 30+ hours and 80+ auto saves to beat. There are plenty of mods for the game that can and will add more depth and envision into the game, like (Star Trek, Star Wars, FreeLancer) etc. mods and some patch mods for better playability. Overall it is a decent game for the price and can kill time like no tomarrow. one game can take not just hours, but days to finish even if you are a pro or novice.
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2 of 2 people (100%) found this review helpful
912.4 hrs on record
Posted: November 1
Other than the lack of a campaign mode, this game is awesome. On highest mode, the graphics are beautiful and the unlimited angles that you can view everyting from is great. The combat system is simple to learn and in no time you'll be hooked just like I am.
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2 of 2 people (100%) found this review helpful
20.9 hrs on record
Posted: November 4
I absolutely love this game.

Fantastic Space RTS, control a solar system, a Galaxy, or several distant star systems.

Loads of units, with incredibly strong units taking forever to research that are able to dominate entire fleets on their own...this game is lots of fun to play with friends!

Not to mention, it looks incredible.
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4 of 6 people (67%) found this review helpful
128.1 hrs on record
Posted: November 3
the game lacks a campaign but if you love random games like me you should get this. it also has a amazing modding community like star trek armarda 3, sins of the prophets or stargate invasion.

i think you should give the game a go
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4 of 6 people (67%) found this review helpful
392.5 hrs on record
Posted: November 8
Fantastic Game! Nuf said, I would say its better than Starcraft 1&2 However it does lack a Single player campaign, and mods arn't as easy to install as Skrim, but its still a very diverse and fun game to play
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4 of 6 people (67%) found this review helpful
162.0 hrs on record
Posted: November 15
This is actually one of my favorite games.
I actually have the original Sins of a Solar Empire on disc, and originally had the trinity on Impulse before that went downhill.
I actually spent the money to buy Trinity again, and then Rebellion, on Steam.
The game is very moddable, and has a wide and diverse modding community backing it up that has really expanded the life of the game.
Damn good space strategy in my opinion.
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1 of 1 people (100%) found this review helpful
81.3 hrs on record
Posted: November 22
Can't believe I never wrote a review for this till now. Split into played original/new sections.

If you played the original Sins of a Solar Empire, this feels like another addon. Buffed graphics, addition of Corvettes (rapid raiders who will tear up frigates and long range frigates) and Titans (yes, basically what that suggests - will take on several capital ships no problem). Couple of new techs based off your Loyal/Rebel alignment, making for somewhat different play styles, especially involving diplomacy. Ever wanted 2 TEC starbases in the same gravity well without mods? Play TEC Loyalists. Wanna stripmine planets into dead asteroids like a proper Vasari? Loyalists. Care to set fire to entire worlds with righteous Advent hate? Loyalists again. Good for immersion. Would not recommend DLCs unless you're feeling rich. 5 bucks is a bit much to pay for a couple of new planet types and the ability to specialize a planet in commerce or industry. Same applies to the Stellar Phenomena DLC. It adds to the immersion and would recommend if they were like $1 each, but 5's a bit much for so little content. Definetly not on the scale of Entrechment/Diplomacy.

New to the series? It's a RTS. Not a micro management game though, in fact the game promotes macro managing - the lower the shields on a ship, the higher the damage mitigation. No mass firepower orders here! Well, capital ships excepted, I prefer to blow those up before letting the AI handle the rest. Typical 4x Space RTS - start with a homeworld, colonize more, build ships, blow up enemies, make friends - and backstab them if you feel like it. Each side is balanced properly with no glaring advantage beyond numbers. That's not to say you can just spam nothing but heavy cruisers; proper fleet composition is key in this game series. Planetary infrastructure is basically just upgrading its capabilities - no GalCiv construction here.

Would I recommend it? Sure, it was a good waste of just under 100 hours while I grabbed all the achivements. Be warned that it's basically nothing but skirmish gameplay - no campaign.
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1 of 1 people (100%) found this review helpful
20.6 hrs on record
Posted: November 27
Sins of a Solar Empire: Rebellion is the latest iteration of Sins of a Solar Empire, a space themed real time strategy game with a truly fantastic scale. I’ve seen battles with hundreds of ship engaging each other as more reinforcements filter in from distant star systems. Even friendly comp stomp games can last for hours as your forces slowly conquer the cosmos. Whether this is epic or tedious is a matter of taste, but I fall into the epic camp.

Sins plays a little like a 4X game. You’ll explore the universe, colonize and develop planets, research all manner of military and civilian technologies, meet other peoples, and kill them. Throughout you’ll be struggling with issues like whether asteroid colony Y would benefit more from a refinery, trade port, or capital ship factory. You are Space Stalin, staying up late in your space Kremlin while devising plans to ensure your people are mining enough crystals to build the ships you’ve just researched. This isn’t a game where you’ll dance a little hero unit around the map. Yes, you can do a little micromanagement. However, you’ve got a lot on your plate already. It’s best to just let the Battleship Captain decide when he wants to fire his special Gauss Rail Gun.

If you want to play an RTS during a lunch break then this is definitely not for you. It’s possible that you could order units to help save an ally’s distant home world, step away from the computer, go out and grab some lunch, eat said lunch, and return before the battle finished. That kind of scale and speed will be a turn off for many people. However, I highly recommend Sins of a Solar Empire Rebellion to patient people with an inner Ming the Merciless.
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2 of 3 people (67%) found this review helpful
41.1 hrs on record
Posted: October 31
its great
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2 of 3 people (67%) found this review helpful
147.4 hrs on record
Posted: November 1
Very fun, replay value at its highest. Not many full mods out yet though, there are many in production as of now
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2 of 4 people (50%) found this review helpful
69.9 hrs on record
Posted: October 30
Great strategy game for people looking to enjoy a space game
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3 of 6 people (50%) found this review helpful
104.2 hrs on record
Posted: November 3
A masterclass in 4x strategy games only hindered by its drawn out end game.
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4 of 8 people (50%) found this review helpful
0.5 hrs on record
Posted: November 8
Amazing game!
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3 of 6 people (50%) found this review helpful
31.5 hrs on record
Posted: November 11
This game is fun and you can make your own maps. This game is very well done the gameplay is super good.
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3 of 6 people (50%) found this review helpful
8.5 hrs on record
Posted: November 11
I love this friggin game!
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5 of 11 people (45%) found this review helpful
1.5 hrs on record
Posted: November 26
I would love to recommend this game but I've purchased it twice now due to Stardocks handling of it's online sales and DRM. Unfortunately this version requires a account with their new online system which I seem to be incapable of making an account for, because reasons. The game it self is a really fun 4x, the DRM wrapped around it is a trainwreck that makes playing online basically impossible.
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